Fix referrers display to show only current referrers.

Updated the view to loop through current referrers in the accompanying period. Added new method `getReferrersHistoryCurrent` to the entity to filter and return only active referrers, ensuring correct display in the UI. Also included documentation for better code clarity.

.changes/unreleased/Fixed-20240916-151843.yaml

@@ -0,0 +1,6 @@
+kind: Fixed
+body: Show only the current referrer in the page "show" for an accompanying period
+  workf
+time: 2024-09-16T15:18:43.017401122+02:00
+custom:
+  Issue: "308"

src/Bundle/ChillPersonBundle/Entity/AccompanyingPeriod/AccompanyingPeriodWork.php

@@ -394,7 +394,13 @@ class AccompanyingPeriodWork implements AccompanyingPeriodLinkedWithSocialIssues
     }
 
     /**
-     * @return ReadableCollection<int, User>
+     * Retrieves a collection of current referrers.
+     *
+     * This method filters the referrer history to get only those entries
+     * where the end date is null, maps them to their associated users,
+     * and returns them as a new ReadableCollection.
+     *
+     * @return ReadableCollection<int, User> collection of active referrers
      *
      * @Serializer\Groups({"accompanying_period_work:edit"})
      */
@@ -408,6 +414,18 @@ class AccompanyingPeriodWork implements AccompanyingPeriodLinkedWithSocialIssues
         return new ArrayCollection(array_values($users));
     }
 
+    /**
+     * @return ReadableCollection<int, AccompanyingPeriodWorkReferrerHistory>
+     */
+    public function getReferrersHistoryCurrent(): ReadableCollection
+    {
+        return new ArrayCollection(
+            $this->getReferrersHistory()
+                ->filter(fn (AccompanyingPeriodWorkReferrerHistory $h) => null === $h->getEndDate())
+                ->getValues()
+        );
+    }
+
     /**
      * @return Collection<int, AccompanyingPeriodWorkReferrerHistory>
      */

src/Bundle/ChillPersonBundle/Resources/views/AccompanyingCourseWork/_item.html.twig

@@ -83,10 +83,10 @@
                 </div>
                 <div class="wl-col list">
                     {%- if w.referrers|length > 0 -%}
-                        {% for r in w.referrersHistory %}
+                        {% for r in w.referrersHistoryCurrent %}
                             <span class="wl-item">
                                 <span class="badge-user">{{ r.user|chill_entity_render_box({'at_date': r.startDate}) }}</span>
-                                {% if not loop.last %}, {% endif %}
+                                {%- if not loop.last %}, {% endif %}
                             </span>
                         {% endfor %}
                     {% else %}